To circumvent the impossibility of consensus[1]}, we assume the partial synchrony model [2]}. In this model, there may be an unstable period, where messages exchanged between correct processes may be arbitrarily delayed. Thus, while the network remains unstable, it is impossible to distinguish a faulty process from a slow one. However, there is some known bound \(\Delta \)  on the worst-case network latency and an unknown Global Stabilization Time (GST), such that after GST, all messages between correct processes arrive within \(\Delta \) .
